Control method of multi-energy collaborative high-quality living system in high-altitude area

Abstract

The invention provides a control method of a multi-energy collaborative high-quality living system in a high-altitude area. The control method comprises the following steps: step 1, formulating a principle followed by the control method; 2, defining two working modes and parameters of the bidirectional energy storage converter; 3, establishing a basic daily change data table and a target function; and 4, carrying out system control according to the steps 1-3. The requirement for annual comfortable life in high-altitude areas is met, meanwhile, the problem that demand loads are not matched with solar energy time, the problem of efficient utilization of equipment and the problem of energy supply safety are solved, the energy utilization rate is increased, and plateau comfortable life is provided.

Description

Technical Field

[0001] The present invention belongs to the field of energy, and specifically relates to a control method for a high-quality life system in high-altitude areas with multi-energy coordination. Background Art

[0002] Life is very difficult due to the thin air in high altitude areas, the large temperature difference between day and night, and the low temperature of glacier meltwater, the source of domestic water, which is often below 5 degrees Celsius all year round. The local residents and border outposts have poor infrastructure such as basic electricity, heating, oxygen, vegetable supply and transportation, and it is difficult to effectively guarantee important energy and materials such as electricity, heat, oxygen and vegetables for survival.

[0003] Due to the high altitude, solar energy resources are abundant, but due to differences in topographic lighting conditions, the load demand and solar energy resources are poorly matched both seasonally and daily. The heat load increases during the cold period, and solar power generation decreases during the period. Conversely, the heat load decreases during the warm period, and solar power generation increases during the period. Whether solar energy resources can be used to solve practical problems in life such as power supply, heating, and oxygen supply throughout the year, and seasonal changes can be considered. Through hydrogen production, oxygen production, and biomass, cross-seasonal energy demand problems can be solved. At the same time, considering economy, operability, and safety, the associated energy of power supply, heating, and cross-seasonal energy storage processes can be fully and reasonably utilized to meet the self-sufficiency needs of air separation oxygen supply, vegetables, etc., which is an urgent problem to be solved. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a control method for a high-quality life system in high-altitude areas with multi-energy synergy, with photovoltaic power generation as energy, electricity storage, heating, heat storage, hydrogen production, and compressed air as loads, and based on physical characteristics and load requirements, it is utilized through mutual coordination between equipment. The oxygen supply problem is solved by nitrogen protection in a compressed air sealed cabin, and the oxygen produced in the hydrogen production process assists biomass or other boilers to generate heating for life. The discharged carbon dioxide hot gas is supplied to the vegetable greenhouse, and hydrogen storage is used to generate electricity through fuel cells to supplement seasonal energy shortages and LED vegetable greenhouses to increase the duration of vegetable lighting, etc., to solve the needs of comfortable life throughout the year in high-altitude areas. At the same time, it solves the problem of mismatch between demand load and solar energy time, the problem of efficient utilization of equipment, and the problem of energy supply safety, improves energy utilization, and provides a comfortable life on the plateau.

[0005] Taking into account economy, reliability, operability and functionality, based on seasonal load demand, solar photovoltaic power generation is used as the main energy source, and chemical battery energy storage is combined with hydrogen production and storage technology to achieve year-round power supply; photovoltaic power generation is combined with biomass boilers to meet year-round heating needs; the nitrogen safety protection measures of the equipment are used to produce oxygen for daily life; the hydrogen production is used to produce oxygen to assist the combustion of biomass boilers, and hot flue gas is generated. After smoke removal treatment, carbon dioxide gas is produced to provide heat for vegetable greenhouses and promote plant growth. At the same time, LED fill lights are installed to increase the lighting time of plants and promote plant photosynthesis.

[0006] Since the water electrolyzer hydrogen production and the bidirectional energy storage converter have an optimal power range and a lower starting voltage limit, the bidirectional energy storage converter and the photovoltaic water electrode heat storage boiler both have the ability to track the maximum power point MPPT of photovoltaic power generation. When the photovoltaic power generation capacity is constant, the maximum power point characteristics of solar photovoltaic power generation and the linear heating characteristics of the photovoltaic water electrode heat storage boiler at 0 power start are fully utilized. By combining the photovoltaic water electrode heat storage boiler with the bidirectional energy storage converter or the water electrolyzer hydrogen production equipment, the photovoltaic power generation energy is optimally distributed during the photovoltaic power generation cycle, and the maximum power of photovoltaic power generation is losslessly absorbed. That is, the energy storage power supply of the bidirectional energy storage converter, the hydrogen production of the water electrolyzer, and the water heating of the photovoltaic water electrode heat storage boiler are realized, and the maximum utilization rate of solar power generation is guaranteed.

[0007] The present invention realizes the following functions:

[0008] 1. Power supply: The reliability of power supply is ensured by using chemical energy storage of dual-phase energy storage converter or complementary power supply of fuel cell dual power supply. Hydrogen is produced and stored in electrolyzer during the period of sufficient sunlight, which solves the problem of fuel cell power supply during the period of insufficient sunlight and across seasons.

[0009] 2. Heating: The photovoltaic water electrode boiler and the biomass boiler provide dual heat source complementary heating to improve the reliability of heating. The biomass boiler provides supplementary heating to solve the problem of cross-season heating;

[0010] 3. Oxygen supply: The compressed air of the air compressor is separated by nitrogen and oxygen to provide positive pressure nitrogen protection for the sealed cabin, solving the problems of equipment derating, heat dissipation, safety, etc. at high altitudes. At the same time, the nitrogen and oxygen separation technology is used to solve the problem of local living oxygen supply through air separation oxygen supply;

[0011] 4. Supply fresh food: Hydrogen is produced by electrolyzers to produce oxygen to assist combustion in biomass boilers, ensuring that biomass is fully burned. The high-temperature flue gas of carbon dioxide is filtered and sent to the vegetable greenhouse to increase the temperature on the one hand, and provide the carbon dioxide gas required by plants on the other hand. The LED supplementary lighting technology is used to increase the lighting time of plants, and cooperate with carbon dioxide gas to accelerate plant growth. The hot water produced by the biomass boiler provides living and heating needs. If conditions permit, fish can be raised in fish ponds, and the water from fish excrement provides water for vegetable nutrition.

[0012] In order to achieve the above object, the present invention adopts the following technical solution:

[0013] The control method of the high-quality life system in high-altitude areas with multi-energy synergy includes the following steps:

[0014] Step 1: Formulate the principles to be followed by the control method;

[0015] Step 2: define two working modes and parameters of the bidirectional energy storage converter;

[0016] Step 3, establish basic daily variation data table and objective function;

[0017] Step 4: Control the system according to steps 1 to 3.

[0018] Furthermore, the principles of step 1 include:

[0019] Principle 1. The number of full photovoltaic hours per day under normal lighting conditions changes with the seasons. Greater than or equal to the number of hours of photovoltaic daily full power inflection point ,Right now At this point in time, the later photovoltaic power generation is a bidirectional converter chemical battery energy storage power supply mode, with power supply and storage as the priority, followed by hydrogen production and storage, and finally heat production and storage;

[0020] Principle 2. The number of full photovoltaic hours per day under normal lighting conditions changes with the seasons. Less than or equal to the number of hours of photovoltaic daily full power inflection point reduction ,Right now At this point, all the photovoltaic power generation in the later period is used for heating, and the bidirectional converter fuel cell power supply mode is started;

[0021] Principle 3. The principle of giving priority to power supply and storage, and supplementing with heating and storage;

[0022] Principle 4. Unified units: both electricity and heat are measured in kilowatt-hours.

[0023] Furthermore, the step 2 comprises:

[0024] Step 2.1 defines two working modes of the energy storage converter as a bidirectional converter chemical battery energy storage power supply mode and a bidirectional converter fuel cell power supply mode;

[0025] Step 2.2 Define the number of hours for the photovoltaic daily full power inflection point to rise and fall , including the number of hours of photovoltaic full-day turning point reduction The number of hours of photovoltaic power generation turning point .

[0026] Furthermore, in step 2.1, the bidirectional converter chemical battery energy storage power supply mode is:

[0027] When photovoltaic power generation meets the bidirectional energy storage converter to supply power to the load and charge the chemical battery at the same time, photovoltaic power generation outputs power through the bidirectional energy storage converter. Power supply to load and chemical battery charging power Power supply, photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is:

[0028] (1)

[0029] Output power of bidirectional energy storage converter in the morning and evening or without sunlight Discharge power from chemical batteries Provide power to supply the load, that is:

[0030] (2)

[0031] The bidirectional converter fuel cell power supply mode is:

[0032] When photovoltaic power generation can only meet the heating power, the bidirectional energy storage inverter output power The fuel cell provides energy to power the load. Output power of the bidirectional energy storage converter Equal to the fuel cell output power ,Right now:

[0033] (3).

[0034] Furthermore, in step 2.2, the number of hours of the photovoltaic day full power inflection point reduction for:

[0035] In photovoltaic installed capacity Due to the uniqueness of local light, when the seasons change, the number of photovoltaic full-time hours Reduce the daily power generation of synchronous photovoltaic Reduced, can only meet the local current minimum daily heat storage target water temperature Power consumption Daily power supply in bidirectional converter chemical battery energy storage mode When the sum is:

[0036] (4)

[0037] At this time, according to Principle 2, the daily photovoltaic power generation All used for heating, and powered by a bidirectional converter fuel cell, the number of full photovoltaic hours at this time Defined as the number of hours that the photovoltaic power generation point drops to full power. ;

[0038] The number of hours for the photovoltaic day full power inflection point to rise for:

[0039] In photovoltaic installed capacity At a certain time, due to the uniqueness of local light, the number of photovoltaic full-time hours per day changes with the seasons. Increase, photovoltaic daily power generation Increase synchronously, when the photovoltaic power generation Greater than or equal to the local current minimum daily heat storage target water temperature Power Consumption Daily power supply in bidirectional converter chemical battery energy storage mode When the sum is:

[0040] (5)

[0041] The number of hours of full photovoltaic power generation at this time Defined as the number of hours of photovoltaic power generation turning point rise , thus starting the bidirectional converter chemical battery energy storage power supply mode and hydrogen production and storage according to Principle 1;

[0042] Among them, due to the daily photovoltaic power generation Equal to photovoltaic installed capacity Multiply by the number of full photovoltaic hours per day ,Right now:

[0043] (6)

[0044] Considering the low irradiance in local cloudy weather, the number of full photovoltaic hours per day will be affected , when monitoring continuous sky but or The number of hours of full power generation of photovoltaic power at this time They are defined as the number of hours of photovoltaic full power inflection point The number of hours of photovoltaic power generation turning point reduction ; is an integer .

[0045] Furthermore, the step 3 comprises:

[0046] Step 3.1 Establish a basic data table of average daily changes over the same period of history, including:

[0047] Based on local historical data and field survey analysis and calculation, we first establish the daily electricity consumption , Maximum daily power consumption , daily calorie , Average outdoor temperature ℃, source water temperature ℃、PV daily full power hours Basic data table of historical average daily changes over the same period;

[0048] Step 3.2 Establish the minimum daily heat storage target water temperature Function:

[0049] Daily heat Equal to the specific heat capacity of water , Hot water quality With water temperature rise The product of, that is:

[0050] (7)

[0051] Among them, water temperature rise is the source water temperature Increase to the daily heat storage target water temperature ,Right now:

[0052] (8)

[0053] Minimum daily heat storage target water temperature The function of the current heat storage temperature , House insulation coefficient ,

[0054] Source water temperature , Average outdoor temperature ,month , heat storage tank volume , Thermal insulation coefficient of heat storage tank ,humidity Related, and based on historical water use heat data for the same period , the daily heat storage target water temperature is obtained through model simulation Function:

[0055] (9)

[0056] Step 3.3 Establish the minimum target remaining power Function:

[0057] Minimum power storage target remaining power The function value of the battery is related to the ambient temperature , Remaining battery power ,month , Current daily power consumption , Charge and discharge rate , cumulative charge and discharge times , Battery discharge power , battery attenuation rate , Battery working lower limit voltage Related, combined with historical daily electricity consumption data for the same period , the minimum target remaining capacity of power storage is obtained through simulation Function:

[0058] (10)

[0059] Among them, daily electricity consumption Powered by the bidirectional energy storage converter output, including: daily power consumption of the air compressor , electricity for basic living and other electrical facilities;

[0060] Step 3.4 Establish the number of hours for the photovoltaic daily full power inflection point to rise and fall Function:

[0061] The number of hours for the photovoltaic power generation to reach the turning point of full power generation per day is reduced The local topography and photovoltaic installation capacity , minimum daily heat storage target water temperature , Bidirectional converter chemical battery energy storage power supply mode daily power supply ,month Related, based on historical data Based on the field survey and analysis, and the historical average daily change basic data table, the number of hours of photovoltaic daily full power inflection point rise and fall is obtained. Function:

[0062] (11)

[0063] Among them, according to the month Analyze the number of hours of photovoltaic full power turning point when the season changes from summer solstice to winter solstice Reduce, reducing the number of hours for the photovoltaic day full power inflection point The function is:

[0064] (12)

[0065] By month Analyze the number of hours of photovoltaic full power turning point when the season changes from winter solstice to summer solstice Increase, which is the number of hours of photovoltaic daily full power inflection point rise Function, that is:

[0066] (13)

[0067] Step 3.5 Establish the minimum daily hydrogen production standard The objective function is:

[0068] Daily minimum standard hydrogen production formula The objective function and the hydrogen standard number of fuel cells , days of hydrogen production , PV daily full power hours , electrolytic cell temperature , electrolytic cell voltage , electrolytic cell current , electrolyzer pressure , Historical electricity consumption data for the same period , daily electricity consumption ,month and no sunlight days According to the model simulation, the minimum daily hydrogen production standard is obtained. The objective function is:

[0069] (14)

[0070] The standard cubic meter of hydrogen used in fuel cells The function is equal to 365 days minus the number of days for hydrogen production. Average daily hydrogen consumption of fuel cells The product of, that is:

[0071] (15).

[0072] Furthermore, the step 4 comprises:

[0073] First, the main controller reads all equipment and sensor data in real time, and reads the historical data of the irradiance meter on the previous normal sunshine day and the number of hours of the photovoltaic day full power inflection point rise and fall according to the current date. Function to analyze and calculate the number of full-time hours of photovoltaic power generation per day , photovoltaic full power hours per day Is it greater than or equal to the number of hours of photovoltaic daily full power inflection point rise? ,Right now , or less than or equal to the number of hours of photovoltaic daily full power inflection point reduction ,Right now ;

[0074] because Photovoltaic daily power Time-sharing for bidirectional energy storage converter chemical battery energy storage and electrolyzer power Provide power, so that the photovoltaic power generated daily Equal to the chemical battery energy storage power of the bidirectional energy storage converter ,Right now:

[0075] (16)

[0076] And photovoltaic daily power Equal to load , electrolytic cell power Adaptive power to photovoltaic water electrode heat storage boiler The sum is:

[0077] (17)

[0078] Among them, the bidirectional energy storage converter has the function of photovoltaic output maximum power tracking; ; is the rated power of the electrolyzer.

[0079] Furthermore, step 4 comprises the following steps:

[0080] Step 4.1. When ,According to Principle 1, during the no-light period, photovoltaic power generation is used as a bidirectional converter chemical battery energy storage power supply mode;

[0081] Step 4.2. When According to principle 2, the main controller starts the bidirectional converter fuel cell power supply mode to supply power to the load. , Photovoltaic power generation Adaptive power for photovoltaic water electrode heat storage boiler Power supply, namely:

[0082] (30)

[0083] in, ;

[0084] Step 4.3. Perform adaptive oxygen production control, including: changing the pressure in the sealed insulation cabin to Thus changing the amount of nitrogen into substance , since the ratio of nitrogen to oxygen in the air is , under the same conditions, the amount of oxygen converted into substances is , thereby controlling the amount of oxygen in the air separation by remotely setting or controlling the controlled pressure reducing valve while ensuring the required pressure range in the sealed and insulated cabin.

[0085] ‌Further, the step 4.1 includes:

[0086] When there is sunlight, the photovoltaic power generation output power Greater than zero, that is When including:

[0087] Step 4.1.1 When the photovoltaic power output voltage Less than the minimum input voltage of the bidirectional energy storage converter ,Right now When the main controller starts the photovoltaic water electrode heat storage boiler, the photovoltaic power generation power Providing power for photovoltaic water electrode heat storage boiler Based on the heating principle and electric power principle of photovoltaic water electrode heat storage boiler and the principle of photovoltaic maximum power point tracking, the distance between water electrodes is adjusted in the autonomous control mode to ensure that the photovoltaic water electrode heat storage boiler provides power. Equal to the maximum power point of photovoltaic output Right now , thereby achieving the heating of the water body of the photovoltaic water electrode heat storage boiler while achieving the photovoltaic maximum power point of the photovoltaic water electrode heat storage boiler Tracking, photovoltaic power generation is maximized;

[0088] Step 4.1.2 When the photovoltaic power output voltage Greater than or equal to the minimum input voltage of the bidirectional energy storage converter ,Right now When the main controller starts the bidirectional energy storage converter, and uses the maximum power tracking feature of the bidirectional energy storage converter to ensure the optimal output power of photovoltaic power generation Through the bidirectional energy storage converter, the load is supplied with power based on the bidirectional energy storage converter control strategy. and chemical battery charging power , so the photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is:

[0089] (18)

[0090] In the process of photovoltaic power generation, the bidirectional energy storage converter is based on the minimum power storage target remaining power. Function to calculate the minimum remaining power of the power storage target in real time value, when the bidirectional energy storage converter stores the remaining power Greater than or equal to When the value is reached, the chemical battery is stopped from being charged and the load is kept powered. ;

[0091] Step 4.1.3 When When the photovoltaic power generation output power Greater than or equal to 50% of the rated power of the electrolyzer for hydrogen production With current load , Adaptive power of photovoltaic water electrode heat storage boiler The sum of the powers is:

[0092] (19)

[0093] Photovoltaic daily power For load , electrolytic cell power Adaptive power of photovoltaic water electrode heat storage boiler Power supply. The main controller controls the power adaptation of the photovoltaic water electrode heat storage boiler , realize the maximum power MPPT tracking of photovoltaic power generation, which not only ensures the maximum utilization of photovoltaic power generation but also realizes the power of electrolyzer Power to produce hydrogen. Equal to load , electrolytic cell power Adaptive power to photovoltaic water electrode heat storage boiler The sum is:

[0094] (20)

[0095] The electrolytic cell voltage With electrolytic cell current The product of is equal to the electrolytic cell power ,Right now ; ; Adaptive power of photovoltaic water electrode heat storage boiler for ;

[0096] The main controller controls the power adaptation of the photovoltaic water electrode heat storage boiler Increase or decrease to adapt to the changes in photovoltaic power generation and achieve maximum power MPPT tracking of photovoltaic power generation;

[0097] Step 4.1.4 When When the minimum power storage target remaining power is increased value:

[0098] When the main controller detects that the daily hydrogen production standard of the electrolyzer is Greater than or equal to the minimum daily hydrogen production standard The objective function value is When the main controller stops the electrolytic cell hydrogen production and photovoltaic water electrode heat storage boiler, , ; At this time, when the photovoltaic power Greater than or equal to load Battery charging power with chemistry When the sum is:

[0099] (twenty one)

[0100] And the photovoltaic power generation output voltage Less than the minimum input voltage of the bidirectional energy storage converter ,Right now When the main controller starts the bidirectional energy storage converter, the remaining power of the minimum energy storage target is increased. value, and utilize the maximum power MPPT tracking feature of the bidirectional energy storage converter to ensure the optimal output power of photovoltaic power generation At the same time, the chemical battery is charged by the bidirectional energy storage converter to maximize the remaining power stored by the bidirectional energy storage converter. , and ensure the load power supply , so the photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is:

[0101] (twenty two)

[0102] Step 4.1.5 When the photovoltaic water electrode heat storage boiler heat storage temperature Achieve minimum daily heat storage target water temperature When the value , the main controller controls the photovoltaic water electrode heat storage boiler to stop working. , when the photovoltaic power Greater than or equal to load , Chemical battery charging power Rated power of electrolyzer When the sum is:

[0103] (twenty three)

[0104] The main controller monitors the remaining power of the bidirectional energy storage converter When the main controller controls the bidirectional energy storage converter to increase the minimum energy storage target remaining power , start the bidirectional energy storage converter to charge the chemical battery, and use the maximum power MPPT tracking feature of the bidirectional energy storage converter to match the rated power of the electrolyzer Collaboratively, based on the bidirectional energy storage converter control strategy and hydrogen production control strategy, photovoltaic power generation is the load power , Chemical battery charging power and electrolyzer rated power Hydrogen production is used to generate electricity, and photovoltaic power generation is used to generate electricity Equal to load power supply , Chemical battery charging power Rated power of electrolyzer The sum is:

[0105] (twenty four)

[0106] This ensures the optimal output power of photovoltaic power generation , and increase the remaining power of chemical battery storage and guarantee the daily hydrogen production standard for electrolyzer hydrogen production ;

[0107] Step 4.1.6 When Time control to supplement or increase the daily hydrogen production standard :

[0108] The main controller obtains the normal light in front The average remaining capacity of chemical battery energy storage replenished every day Value, front normal light The average standard hydrogen production of the day and the normal sunlight in the future numerical forecast of the day;

[0109] Average standard cubic meter of hydrogen produced on the day for:

[0110] (25)

[0111] The average standard volume of hydrogen produced on that day Compared with the current minimum daily hydrogen production standard Target value comparison, if less than the minimum daily hydrogen production standard The target value, i.e. When the normal illumination is continued Days Remaining power before chemical battery storage Remaining power compared to the current minimum power storage target Poor average remaining capacity Value, that is:

[0112] (26)

[0113] If less than the multiplication factor The minimum power storage target remaining power The product value of When comparing and evaluating the future normal sunlight intensity, the basic data table of average daily changes in the same period in history is used. Numerical prediction of photovoltaic full power hours per day , whether the photovoltaic daily full-time hours are the same as the historical average daily change basic data table during the same period The absolute value of the deviation is less than or equal to Scope, that is:

[0114] (27)

[0115] If the minimum target power is met, the main controller controls the bidirectional converter to reduce the remaining power. for:

[0116] (28)

[0117] Among them, take the multiplication factor Range is ; Value range ; is an integer; ;

[0118] Average standard cubic meter of hydrogen produced on the day The value is equal to the current minimum hydrogen production standard Target value comparison, if greater than or equal to the minimum daily hydrogen production standard The target value, i.e. When the main controller controls the bidirectional converter to restore the original minimum power storage target remaining power The value of

[0119] If the real-time monitoring and analysis of the main controller does not meet , , The conditions are as follows: increase the hydrogen production time to supplement the average daily hydrogen production standard The value is greater than or equal to the minimum daily hydrogen production standard The target value is:

[0120] (29).

[0121] Beneficial effects:

[0122] 1. The present invention realizes the maximum benefit of multiple loads and ensures the maximum utilization of photovoltaic power generation through the coordinated control of multiple controllable loads. For example, the photovoltaic water electrode heat storage boiler has 0~100% adjustable power, which can flexibly change the load power by heating and storing water, and adapt the optimal hydrogen production power of the electrolyzer in combination with the control algorithm of hydrogen production, which not only meets the optimal power hydrogen production of the electrolyzer, but also realizes the maximum power point of photovoltaic power. Tracking, while the photovoltaic water electrode heat storage boiler obtains heat;

[0123] 2. The present invention, based on the local illumination and environmental characteristics at high altitudes, establishes a minimum objective function and constrains the system control by the minimum objective function, thereby ensuring both the basic demand of the load and the maximum utilization of photovoltaic power generation;

[0124] 3. The present invention is based on the local illumination and environmental characteristics at high altitudes, by establishing the number of hours for the local photovoltaic daytime full power inflection point to rise and fall. , to solve the pain point that it is impossible to divide heating and non-heating time zones in different high-altitude areas;

[0125] 4. The present invention, based on the characteristics of high-altitude local meteorology with multiple changes, adjusts the minimum objective function value of different load demands by appropriate control, thereby changing the demand for various loads to obtain energy for photovoltaic power generation. BRIEF DESCRIPTION OF THE DRAWINGS

[0126] Figure 1 Structural diagram of the high-quality life system in high altitude areas with multi-energy synergy of the present invention;

[0127] Figure 2 A first flow chart of a control method of a high-quality life system in high altitude areas with multi-energy coordination according to the present invention;

[0128] Figure 3 A second flow chart of the control method of the high-altitude high-quality life system with multi-energy coordination of the present invention.

[0129] Among them, the figure markings are: photovoltaic array 1, sealed insulation cabin 2, compressed gas unit 3, electrolyzer 4, bidirectional energy storage inverter 5, photovoltaic water electrode heat storage boiler 6, chemical battery 7, hydrogen storage tank 8, water electrode heating system 9, fuel cell 10, sealed cabin heat exchanger 11, air compressor 12, nitrogen and oxygen separation module 13, storage oxygen cylinder 14, source water supply 15, oxygen storage tank 16, biomass boiler 17, vegetable greenhouse 18, top constant temperature zone 19, heating zone 20, insulation material 21, electrolyte heat exchanger 22, constant temperature zone heat exchanger 23, main controller 24, controlled pressure reducing valve 25, irradiation meter 26. DETAILED DESCRIPTION

[0130] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0131] like Figure 1 As shown, the high-quality life system for high-altitude areas with multi-energy synergy of the present invention is composed of a photovoltaic array 1, a sealed insulation cabin 2, a compressed gas unit 3, an electrolyzer 4, a bidirectional energy storage inverter 5, and a photovoltaic water electrode heat storage boiler 6.

[0132] The sealed insulation cabin 2, electrolyzer 4, bidirectional energy storage inverter 5, photovoltaic water electrode heat storage boiler 6 are relatively concentratedly arranged around the living area, and the photovoltaic array 1 is arranged at a place suitable for photovoltaic power generation around the living area.

[0133] The photovoltaic array 1 is the main energy source for providing electricity and heat to local residents. The photovoltaic power generation output passes through the sealed insulation cabin 2 and is connected to the bidirectional energy storage converter 5 to provide load electricity and charge the chemical battery 7; the photovoltaic array 1 is directly connected to the electrolyzer 4 to provide energy for hydrogen production by the electrolyzer 4 and hydrogen storage tank 8 to store hydrogen; the photovoltaic array 1 is directly connected to the photovoltaic water electrode heat storage boiler 6 to provide heating and sensible heat storage energy. At the same time, the 0~100% power adjustable feature of the photovoltaic water electrode heat storage boiler 6 is used to cooperate with the electrolyzer 4 to produce hydrogen, so as to achieve the optimal power hydrogen production of the electrolyzer 4 and the maximum power tracking of photovoltaic power generation, and effectively utilize the photovoltaic power generation efficiency. The irradiation meter 26 is installed next to the photovoltaic array 1 to monitor the light intensity in real time.

[0134] In addition to the bidirectional energy storage converter 5, the sealed insulation cabin 2 also includes a fuel cell 10, a sealed cabin heat exchanger 11, and a chemical battery 7. The main controller 24 is embedded on the wall of the sealed insulation cabin 2, the controlled pressure reducing valve 25 is embedded on the cabin top, and the compressed gas unit 3 is installed outside the cabin; the bidirectional energy storage converter 5, the fuel cell 10, the sealed cabin heat exchanger 11, and the chemical battery 7 are distributed and installed in the sealed insulation cabin 2 according to the optimal connection relationship, and the sealed cabin heat exchanger 11 is placed on the top of the sealed insulation cabin 2. Among them, the main controller 24 is connected to all equipment sub-control systems, sensors, and control valves through communication lines, reads data, and controls in real time according to the control strategy. The pressure in the sealed insulation cabin 2 is guaranteed by the controlled pressure reducing valve 25, and the local oxygen demand for life is provided while the equipment is safely operated.

[0135] The compressed gas unit 3 includes an air compressor 12, a nitrogen and oxygen separation module 13 and an oxygen storage cylinder 14. The gas compressed by the air compressor 12 passes through the nitrogen and oxygen separation module 13, and the nitrogen is compressed into the sealed insulation cabin 2, providing nitrogen of a certain pressure in the sealed insulation cabin 2, which is a positive pressure nitrogen protection measure relative to the local atmosphere, and mainly plays the role of fire prevention, dust prevention, heat exchange and avoiding equipment derating; and the nitrogen and oxygen separation module 13 produces oxygen produced by air separation and is compressed into the oxygen storage cylinder 14, which meets the national standard for human oxygen use and provides oxygen demand for life. Among them, the nitrogen in the sealed insulation cabin 2 is used as the exchange medium between the equipment and the sealed cabin heat exchanger 11, and the introduced source water supply 15 is used through the sealed cabin heat exchanger 11 to regulate the temperature in the sealed insulation cabin 2 through heat exchange, ensuring the optimal working temperature inside the sealed insulation cabin 2 while increasing the water supply temperature of the glacier meltwater source.

[0136] The bidirectional energy storage inverter 5 receives the power generation energy of the photovoltaic array 1, and on the one hand, charges and discharges the chemical battery, and on the other hand, supplies power to the load. In the period of weak light or no light, the photovoltaic array 1 cannot provide power to charge and discharge the chemical battery 7 and supply power to the load. When the remaining power of the chemical battery 7 is unable to supply power through the bidirectional energy storage inverter 5, the fuel cell 10 converts the hydrogen stored across seasons into electrical energy, and supplies power to the load through the bidirectional energy storage inverter 5.

[0137] The process of hydrogen production and storage in the electrolyzer 4 is during the abundant power generation period of the photovoltaic array 1. The oxygen production and storage tank 16 is used to store oxygen during the hydrogen production and storage process of the electrolyzer 4. The hydrogen production and storage tank 8 stores hydrogen to solve the problem of cross-seasonal power supply. The oxygen produced by the electrolyzer 4 cannot be directly used for human oxygen supply because of industrial oxygen production. Therefore, the oxygen is stored in the oxygen storage tank 16 and discharged to assist the full combustion of the biomass boiler 17 or other boiler combustion medium. On the one hand, it provides heat for life, and on the other hand, it produces carbon dioxide gas and carries heat, such as heating for vegetable greenhouses 18 and cooperates with LED supplementary lighting technology to improve plant photosynthesis and promote rapid plant growth.

[0138] The photovoltaic water electrode heat storage boiler 6 is directly connected to the power generation output of the photovoltaic array 1, and converts electricity into heat through the water electrode heating system 9 using the water electrode heating principle, and uses the sensible heat storage principle of water to store heat for each day. At the same time, it coordinates with the photovoltaic array 1 output parallel electrolyzer 4, and uses the 0~100% power adjustable feature of the photovoltaic water electrode heat storage boiler 6, cooperates with the electrolyzer 4 to produce hydrogen, realizes the photovoltaic water electrode heat storage boiler 6 heating and sensible heat storage, and realizes the optimal power hydrogen production of the electrolyzer 4 and the maximum power tracking utilization of the photovoltaic array 1, and effectively utilizes the photovoltaic power generation efficiency.

[0139] The photovoltaic water electrode heat storage boiler 6 is divided into a top constant temperature zone 19 and an electric heating zone 20, and the electric heating zone 20 is isolated from the top constant temperature zone 19 by an insulating material 21. The electric heating zone 20 mainly applies the output power of the photovoltaic array 1 to the water resistor through the water electrode to generate heat to heat the water body. The top constant temperature zone 19 is mixed with a certain amount of relatively warm water output by the sealed cabin heat exchanger 11 to ensure the top constant temperature zone 19 in the photovoltaic water electrode heat storage boiler 6.

[0140] In order to adapt to the rapid response of electrolyzer 4 to the fluctuation of photovoltaic power generation, the electrolyte produced by electrolyzer 4 is exchanged with the constant temperature zone heat exchanger 23 of the photovoltaic water electrode heat storage boiler through the electrolyte heat exchanger 22 to ensure that the electrolyzer 4 is always in the best constant temperature state. The constant temperature zone heat exchanger 23 is installed in the top constant temperature zone 19, and the electrolyte heat exchanger 22 is installed in the electrolyte. The constant temperature zone heat exchanger 23 and the electrolyte heat exchanger 22 exchange heat through the water pipeline.

[0141] Since the meltwater from the glacier is the source water supply 15 for the lives of local people, the source water supply 15 is introduced into the sealed cabin heat exchanger 11. On the one hand, the temperature of the sealed insulation cabin 2 is exchanged by low-temperature water to ensure the stable operation of the internal equipment of the sealed insulation cabin 2. On the other hand, the temperature of the source water supply 15 is increased, and the relatively warm water output by the sealed cabin heat exchanger 11 enters the photovoltaic water electrode heat storage boiler 6 for further heating, reducing the heating power of the photovoltaic water electrode heat storage boiler 6 and improving the living comfort of local people.

[0142] Due to the cold climate in high altitude areas, the photovoltaic power generation light source is complex: it is composed of direct sunlight, reflected light from mountains and snow-capped mountains, and scattered light. It has the uniqueness of local illumination. The number of photovoltaic full-time hours in each adjacent area on the same day is The climate in each area is also different, which leads to different load energy demand. In addition, cloud and seasonal changes directly affect the output of photovoltaic power generation, and different seasons further lead to different load energy demand. Especially considering the harsh climate in high-altitude areas, far away from the large power grid, and high power supply failure rate, solar energy resources can be used to provide local electricity, heating, oxygen and vegetable needs for work and life throughout the year in an off-grid state.

[0143] Moreover, the energy demand for work and life does not match the rising and setting of the sun and the seasonal changes. The demand for electricity and heating is particularly prominent in high-altitude areas with high cold and lack of oxygen. Especially in winter, the light is weak and photovoltaic power generation is relatively small. The temperature difference between day and night is large, and the use of electricity and heat is concentrated in the morning and evening, so the demand for heat is relatively large. In summer, the light is strong and photovoltaic power generation is relatively sufficient. The demand for heat is relatively low and can meet the local work and life needs. Therefore, electricity and heat storage based on seasonal needs is the key. Considering the efficient use of energy, through reasonable energy allocation, optimal equipment configuration, cross-seasonal energy storage technology, and optimized control methods, the local work and life electricity, heating, oxygen supply and vegetable needs in the off-grid state throughout the year can be achieved.

[0144] like Figure 2 and Figure 3 As shown, the control method of the present invention comprises the following steps:

[0145] Step 1: Develop principles to be followed by the control method, including:

[0146] Principle 1. The number of full photovoltaic hours per day under normal lighting conditions changes with the seasons. Greater than or equal to the number of hours of photovoltaic daily full power inflection point ,Right now At this point in time, the later photovoltaic power generation is a bidirectional converter chemical battery energy storage power supply mode, with power supply and storage as the priority, followed by hydrogen production and storage, and finally heat production and storage;

[0147] Principle 2. The number of full photovoltaic hours per day under normal lighting conditions changes with the seasons. Less than or equal to the number of hours of photovoltaic daily full power inflection point reduction ,Right now At this point, all the photovoltaic power generation in the later period is used for heating, and the bidirectional converter fuel cell power supply mode is started;

[0148] Principle 3. The principle of giving priority to power supply and storage, with heating and storage as a supplement;

[0149] Principle 4. Unified units: both electricity and heat are measured in kilowatt-hours (kWh).

[0150] Step 2: Define two working modes and parameters of the bidirectional energy storage converter:

[0151] Step 2.1 Define two working modes of the energy storage converter:

[0152] Step 2.1.1 Bidirectional converter chemical battery energy storage power supply mode:

[0153] When photovoltaic power generation meets the bidirectional energy storage converter to supply power to the load (load power supply power ) and simultaneously charging chemical batteries (chemical battery charging power ), photovoltaic power generation outputs power through a bidirectional energy storage converter Power supply to load and chemical battery charging power Power supply, photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is:

[0154] (1)

[0155] Output power of bidirectional energy storage converter in the morning and evening or without sunlight Discharge power from chemical batteries Provide power to supply the load, that is:

[0156] (2)

[0157] Step 2.1.2 Bidirectional converter fuel cell power supply mode:

[0158] When photovoltaic power generation can only meet the heating power, the bidirectional energy storage inverter output power The fuel cell provides energy to power the load. Output power of the bidirectional energy storage converter Equal to the fuel cell output power ,Right now:

[0159] (3)

[0160] Step 2.2 Define the number of hours for the photovoltaic daily full power inflection point to rise and fall :

[0161] Due to the unique light and climate characteristics of high-altitude areas, it is impossible to supply energy through the traditional method of dividing heating and non-heating seasons. It can well quantitatively reflect the impact of local landforms on solar radiation, climate, and photovoltaic power generation, and thus establish the number of hours of local photovoltaic day full power inflection point rise and fall. The bidirectional converter chemical battery energy storage power supply mode and the bidirectional converter fuel cell power supply mode division method for different high altitude areas are proposed. The bidirectional converter chemical battery energy storage power supply mode and the bidirectional converter fuel cell power supply mode are divided into the bidirectional converter chemical battery energy storage power supply mode and the bidirectional converter fuel cell power supply mode at the photovoltaic day full power inflection point rise and fall hours. The working modes are switched at the inflection points to achieve annual optimized power supply, heat supply and oxygen supply under certain conditions based on environment, energy and load configuration.

[0162] The number of hours of photovoltaic full power inflection point rise and fall Including: PV daily full power inflection point reduction hours The number of hours of photovoltaic power generation turning point .

[0163] Step 2.2.1 PV daily full power inflection point reduction hours :

[0164] It refers to the installed capacity of photovoltaic Due to the uniqueness of local light, when the seasons change, the number of photovoltaic full-time hours Reduce the daily power generation of synchronous photovoltaic Reduced, can only meet the local current minimum daily heat storage target water temperature Power consumption Daily power supply in bidirectional converter chemical battery energy storage mode When the sum is:

[0165] (4)

[0166] At this time, according to Principle 2, the daily photovoltaic power generation All used for heating, and powered by a bidirectional converter fuel cell, the number of full photovoltaic hours at this time Defined as the number of hours that the photovoltaic power generation point drops to full power. ;

[0167] Step 2.2.2. PV daily full power inflection point rising hours :

[0168] It refers to the installed capacity of photovoltaic At a certain time, due to the uniqueness of local light, the number of photovoltaic full-time hours per day changes with the seasons. Increase, photovoltaic daily power generation Increase synchronously, when the photovoltaic power generation Greater than or equal to the local current minimum daily heat storage target water temperature Power Consumption Daily power supply in bidirectional converter chemical battery energy storage mode When the sum is:

[0169] (5)

[0170] The number of full photovoltaic hours per day at this time Defined as the number of hours of photovoltaic power generation turning point rise , thus starting the bidirectional converter chemical battery energy storage power supply mode and hydrogen production and storage according to Principle 1.

[0171] Among them, due to the daily photovoltaic power generation Equal to photovoltaic installed capacity Multiply by the number of full photovoltaic hours per day ,Right now:

[0172] (6)

[0173] Considering the low irradiance in local cloudy weather, the number of full photovoltaic hours per day will be affected , when monitoring continuous sky but or The number of hours of full power generation of photovoltaic power at this time They are defined as the number of hours of full power inflection point of low irradiance photovoltaic day. The number of hours of low irradiance photovoltaic full power turning point reduction .in is an integer, ;

[0174] Step 3: Establish the basic daily variation data table and objective function, including:

[0175] Due to the cold climate in high altitude areas, the photovoltaic power generation light source is complex: it is composed of direct sunlight, reflected light from mountains and snow-capped mountains, and scattered light. It has the uniqueness of local illumination. The number of photovoltaic full-time hours in each adjacent area on the same day is Different regions have different climates, which leads to different energy demand for loads. In addition, cloud and seasonal changes directly affect the output of photovoltaic power generation, and different seasons further lead to different energy demand for loads. In order to adapt to the characteristics of photovoltaic power generation and meet the basic energy demand of each load in different seasons, based on local historical data, field survey analysis, calculation and model simulation, we have established the following: basic daily variation data table, minimum daily heat storage target water temperature Function, photovoltaic daily full power rise and fall inflection point hours Function, minimum power storage target remaining power Function and minimum hydrogen production Standard objective function.

[0176] Step 3.1 Establish the basic data table of average daily changes in the same period of history:

[0177] Based on local historical data and field survey analysis and calculation, we first establish the daily electricity consumption , Maximum daily power consumption , daily calorie , Average outdoor temperature ℃, source water temperature ℃、PV daily full power hours The basic data table of historical average daily changes in the same period is Table 1.

[0178] Table 1

[0179]

[0180] Step 3.2 Establish the minimum daily heat storage target water temperature Function:

[0181] Since photovoltaic power generation is converted into heat, the photovoltaic water electrode heat storage boiler can fully utilize the 0~100% adjustable power of water heating and heat storage characteristics, so the daily heat Mainly uses water as a medium for heating, heat storage and conduction, daily heat Equal to the specific heat capacity of water , Hot water quality With water temperature rise The product of, that is:

[0182] (7)

[0183] Among them, water temperature rise is the source water temperature Increase to the daily heat storage target water temperature ,Right now:

[0184] (8)

[0185] When the hot water quality Specific heat capacity of water When a certain temperature is reached, the target water temperature of the heat storage is Daily calorie consumption Directly proportional to the daily heat storage target water temperature The higher the synchronized daily heat The higher the temperature, the higher the target water temperature. , can increase the heat storage capacity, that is, the daily heat .

[0186] Since cloud and seasonal changes directly affect the output of photovoltaic power generation, and different seasons have different heat demand, in order to improve the utilization efficiency of photovoltaic power generation, adapt to the characteristics of photovoltaic power generation and meet the basic heat load requirements of different seasons, the minimum daily heat storage target water temperature is established. function.

[0187] Due to the minimum daily heat storage target water temperature The determination of the function value is related to the current heat storage temperature , House insulation coefficient , Source water temperature , Average outdoor temperature ,month , heat storage tank volume , Thermal insulation coefficient of heat storage tank ,humidity Related, and based on historical water use heat data for the same period , the daily heat storage target water temperature is obtained through model simulation Function:

[0188] (9)

[0189] Step 3.3 Establish the minimum target remaining power Function:

[0190] Due to the remaining power The amount indicates the load power consumption capacity and the remaining power storage capacity. The larger the output, the more power it generates. Due to cloud and seasonal changes, the number of full photovoltaic hours directly affects the output of photovoltaic power generation. In addition, the power demand varies in different seasons. For example, in the warm season, the solar altitude angle increases, the photovoltaic power generation increases, and at the same time, the outdoor transportation and production labor electricity consumption increases significantly, the power storage capacity is greatly increased, and the heat consumption is relatively reduced. In order to adapt to the characteristics of photovoltaic power generation and the power load demand in different seasons, the minimum power storage target remaining power is established. function to ensure basic electricity demand.

[0191] Due to the minimum power storage target remaining power The function value of the battery is related to the ambient temperature , Remaining battery power ,month , Current daily power consumption , Charge and discharge rate , cumulative charge and discharge times , Battery discharge power , battery attenuation rate , Battery working lower limit voltage Related, combined with historical daily electricity consumption data for the same period , the minimum target remaining capacity of power storage is obtained through simulation Function:

[0192] (10)

[0193] Among them, daily electricity consumption Mainly powered by the output of a bidirectional energy storage converter, including: Daily power consumption of the air compressor , basic electricity for daily life and electricity for other electrical facilities.

[0194] Step 3.4 Establish the number of hours for the photovoltaic daily full power inflection point to rise and fall Function:

[0195] Due to the unique light and climate characteristics of high-altitude areas, it is impossible to establish heating and non-heating time zones through traditional methods, and the local photovoltaic full-day hours It does reflect the local geomorphic characteristics very well, and thus the local photovoltaic day full power inflection point rise and fall hours are established , to divide the heating and non-heating time zones in different high-altitude areas.

[0196] Due to the inflection point of the photovoltaic day full power reduction hours The local topography and photovoltaic installation capacity , minimum daily heat storage target water temperature , Bidirectional converter chemical battery energy storage power supply mode daily power supply ,month Therefore, based on historical data According to Table 1, the number of hours of the photovoltaic daily full power inflection point rise and fall is obtained. Function:

[0197] (11)

[0198] Among them, according to the month Analyze the number of hours of photovoltaic full power turning point when the season changes from summer solstice to winter solstice Reduce, reducing the number of hours for the photovoltaic day full power inflection point The function is:

[0199] (12)

[0200] According to the month Analyze the number of hours of photovoltaic full power turning point when the season changes from winter solstice to summer solstice Increase, which is the number of hours of photovoltaic daily full power inflection point rise Function, that is:

[0201] (13)

[0202] Step 3.5 Establish the minimum daily hydrogen production standard Objective function:

[0203] Since the purpose of hydrogen production is to meet the demand for inter-seasonal supplementary power supply, more hydrogen can be obtained during the period of sufficient sunlight. The daily time point and the number of hours of photovoltaic full power inflection point reduction The number of days between the daily time points is the number of days for hydrogen production However, due to the volatility of photovoltaic power generation and the continuous lack of sunlight, as well as the sensitivity of electricity consumption, according to Principle 1, photovoltaic power generation first meets the power supply of the chemical battery energy storage bidirectional converter power supply mode, followed by hydrogen production and storage, and finally heat production and storage. And under normal light conditions, the number of days for hydrogen production The power supply should be guaranteed while the minimum daily hydrogen production standard should be met. The demand is then used to establish the number of days for hydrogen production The minimum daily hydrogen production standard within the daily time The objective function of .

[0204] Due to the minimum daily hydrogen production The objective function and the hydrogen standard number of fuel cells , days of hydrogen production , PV daily full power hours , electrolytic cell temperature , electrolytic cell voltage , electrolytic cell current , electrolyzer pressure , Historical electricity consumption data for the same period , Daily power consumption ,month and no sunlight days According to the model simulation, the minimum daily hydrogen production standard is obtained. The objective function is:

[0205] (14)

[0206] The standard cubic meter of hydrogen used in fuel cells The function is equal to 365 days minus the number of days for hydrogen production. Average daily hydrogen consumption of fuel cells The product of, that is:

[0207] (15)

[0208] Step 4: Perform system control according to steps 1 to 3, including:

[0209] First, the main controller reads all equipment and sensor data in real time, and reads the historical data of the irradiance meter on the previous normal sunshine day and the number of hours of the photovoltaic day full power inflection point rise and fall according to the current date. Function to analyze and calculate the number of full-time hours of photovoltaic power generation per day , photovoltaic full power hours per day Is it greater than or equal to the number of hours of photovoltaic daily full power inflection point rise? ,Right now , or less than or equal to the number of hours of photovoltaic daily full power inflection point reduction ,Right now .

[0210] because Photovoltaic daily power Time-sharing for bidirectional energy storage converter chemical battery energy storage and electrolyzer power Provide power, so that the photovoltaic power generated daily Equal to the chemical battery energy storage power of the bidirectional energy storage converter ,Right now:

[0211] (16)

[0212] And photovoltaic daily power Equal to load , electrolytic cell power Adaptive power to photovoltaic water electrode heat storage boiler The sum is:

[0213] (17)

[0214] Among them, the bidirectional energy storage converter has the maximum power tracking MPPT function of photovoltaic output; ; is the rated power of the electrolyzer.

[0215] Step 4.1. When ,According to Principle 1, photovoltaic power generation is used as the bidirectional converter chemical battery energy storage power supply mode during the no-light period.

[0216] When there is sunlight, the photovoltaic power generation output power Greater than zero, that is When including:

[0217] Step 4.1.1 When the photovoltaic power output voltage Less than the minimum input voltage of the bidirectional energy storage converter ,Right now At this time, the photovoltaic power generation is converted into heat, making full use of the photovoltaic water electrode heat storage boiler's 0~100% adjustable power to water heating and heat storage characteristics. Therefore, the main controller starts the photovoltaic water electrode heat storage boiler, and the photovoltaic power generation power Providing power for photovoltaic water electrode heat storage boiler , based on the photovoltaic water electrode heat storage boiler heating principle and the electric power principle Based on the principle of photovoltaic maximum power point tracking, the distance between the water electrodes is adjusted in the autonomous control mode to ensure that the photovoltaic water electrode heat storage boiler provides power. Equal to the maximum power point of photovoltaic output Right now , thereby achieving the heating of the water body of the photovoltaic water electrode heat storage boiler while achieving the photovoltaic maximum power point of the photovoltaic water electrode heat storage boiler Tracking, photovoltaic power generation is maximized.

[0218] in, is the water body resistance; is the square of the current flowing through the resistance of the water body; Provides heating power for photovoltaic water electrode heat storage boiler.

[0219] Step 4.1.2 When the photovoltaic power output voltage Greater than or equal to the minimum input voltage of the bidirectional energy storage converter ,Right now When the main controller starts the bidirectional energy storage converter, and uses the maximum power MPPT tracking feature of the bidirectional energy storage converter to ensure the optimal output power of photovoltaic power generation Through the bidirectional energy storage converter, the load is supplied with power based on the bidirectional energy storage converter control strategy. and chemical battery charging power , so the photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is:

[0220] (18)

[0221] In the process of photovoltaic power generation, the bidirectional energy storage converter is based on the minimum power storage target remaining power. Function to calculate the minimum remaining power of the power storage target in real time value, when the bidirectional energy storage converter stores the remaining power Greater than or equal to When the value is reached, the chemical battery is stopped from being charged and the load is kept powered. .

[0222] Step 4.1.3 When When the photovoltaic power generation output power Greater than or equal to 50% of the rated power of the electrolyzer for hydrogen production With current load , Adaptive power of photovoltaic water electrode heat storage boiler The sum of the powers is:

[0223] (19)

[0224] Photovoltaic daily power For load , electrolytic cell power Adaptive power of photovoltaic water electrode heat storage boiler Power supply. The main controller controls the power adaptation of the photovoltaic water electrode heat storage boiler , realize the maximum power MPPT tracking of photovoltaic power generation, which not only ensures the maximum utilization of photovoltaic power generation but also realizes the power of electrolyzer Power to produce hydrogen. Equal to load , electrolytic cell power Adaptive power to photovoltaic water electrode heat storage boiler The sum is:

[0225] (20)

[0226] The electrolytic cell voltage With electrolytic cell current The product of is equal to the electrolytic cell power ,Right now ; ; Adaptive power of photovoltaic water electrode heat storage boiler for .

[0227] The main controller controls the power adaptation of the photovoltaic water electrode heat storage boiler Increase or decrease to adapt to the changes in photovoltaic power generation and achieve maximum power MPPT tracking of photovoltaic power generation, which not only ensures the maximum utilization of photovoltaic power generation but also achieves the rated power of the electrolyzer Power hydrogen production and load The power supply of photovoltaic water electrode heat storage boiler is used for heating and heat storage. Due to the volatility of photovoltaic power generation and based on principle 1, under the condition of ensuring that photovoltaic power generation is powered by bidirectional converter chemical battery energy storage, the daily hydrogen production standard method of electrolyzer hydrogen production is very easy to occur. Less than the minimum daily hydrogen production standard The objective function value is .

[0228] Step 4.1.4 When When the minimum power storage target remaining power is increased value:

[0229] When the main controller detects that the daily hydrogen production standard of the electrolyzer is Greater than or equal to the minimum daily hydrogen production standard The objective function value is When the main controller stops the electrolytic cell hydrogen production and photovoltaic water electrode heat storage boiler, , At this time, when the photovoltaic power is Greater than or equal to load Battery charging power with chemistry When the sum is:

[0230] (twenty one)

[0231] And the photovoltaic power generation output voltage Less than the minimum input voltage of the bidirectional energy storage converter ,Right now When the main controller starts the bidirectional energy storage converter, the remaining power of the minimum energy storage target is increased. value, and utilize the maximum power MPPT tracking feature of the bidirectional energy storage converter to ensure the optimal output power of photovoltaic power generation At the same time, the chemical battery is charged by the bidirectional energy storage converter to maximize the remaining power stored by the bidirectional energy storage converter. , and ensure the load power supply , so the photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is:

[0232] (twenty two)

[0233] Step 4.1.5 When the photovoltaic water electrode heat storage boiler heat storage temperature Achieve minimum daily heat storage target water temperature When the value , the main controller controls the photovoltaic water electrode heat storage boiler to stop working. , when the photovoltaic power Greater than or equal to load , Chemical battery charging power Rated power of electrolyzer When the sum is:

[0234] (twenty three)

[0235] The main controller monitors the remaining power of the bidirectional energy storage converter When the main controller controls the bidirectional energy storage converter to increase the minimum energy storage target remaining power , start the bidirectional energy storage converter to charge the chemical battery, and use the maximum power MPPT tracking feature of the bidirectional energy storage converter to match the rated power of the electrolyzer Collaboratively, based on the bidirectional energy storage converter control strategy and hydrogen production control strategy, photovoltaic power generation is the load power , Chemical battery charging power and electrolyzer rated power Hydrogen production is used to generate electricity, and photovoltaic power generation is used to generate electricity Equal to load power supply , Chemical battery charging power Rated power of electrolyzer The sum is:

[0236] (twenty four)

[0237] This ensures the optimal output power of photovoltaic power generation , and increase the remaining power of chemical battery storage and guarantee the daily hydrogen production standard for electrolyzer hydrogen production .

[0238] Step 4.1.6 When Timely control to supplement or increase the daily hydrogen production standard :

[0239] Considering the volatility of photovoltaic power generation during the bidirectional converter chemical battery energy storage power supply mode and the daily hydrogen production standard method of electrolyzer hydrogen production based on principle 1, Less than the minimum daily hydrogen production standard The objective function value is . And continuous rainy days, when the chemical battery storage has surplus power When the capacity is lower than the lower limit, the main controller starts the bidirectional converter fuel cell energy storage power supply mode for emergency supplementary power supply according to the energy storage power supply control strategy, increasing the loss of hydrogen, thereby making full use of photovoltaic power generation to maximize hydrogen production.

[0240] At this time, the main controller obtains the normal light The average remaining capacity of chemical battery energy storage replenished every day Value, front normal light The average standard hydrogen production of the day and the normal sunlight in the future Numerical forecast of the day.

[0241] Average standard cubic meter of hydrogen produced on the day for:

[0242] (25)

[0243] The average standard volume of hydrogen produced on that day Compared with the current minimum daily hydrogen production standard Target value comparison, if less than the minimum daily hydrogen production standard The target value, i.e. When the normal illumination is continued Days Remaining power before chemical battery storage Remaining power compared to the current minimum power storage target Poor average remaining capacity Value, that is:

[0244] (26)

[0245] If less than the multiplication factor The minimum power storage target remaining power The product value of Based on the historical average daily change basic data Table 1, the future normal light intensity is compared and evaluated. Numerical prediction of photovoltaic full power hours per day , whether the photovoltaic daily full power hours are the same as those in Table 1 The absolute value of the deviation is less than or equal to Scope, that is:

[0246] (27)

[0247] If the minimum target power is met, the main controller controls the bidirectional converter to reduce the remaining power. for:

[0248] (28)

[0249] Among them, take the multiplication factor Range is ; Value range ; is an integer, .

[0250] Average standard cubic meter of hydrogen produced on the day The value is equal to the current minimum hydrogen production standard Target value comparison, if greater than or equal to the minimum daily hydrogen production standard The target value, i.e. When the main controller controls the bidirectional converter to restore the original minimum power storage target remaining power The value of .

[0251] If the real-time monitoring and analysis of the main controller does not meet , , The conditions are as follows: increase the hydrogen production time to supplement the average daily hydrogen production standard The value is greater than or equal to the minimum daily hydrogen production standard The target value is:

[0252] (29)

[0253] Step 4.2. When According to principle 2, the main controller starts the bidirectional converter fuel cell power supply mode to supply power to the load. , Photovoltaic power generation Adaptive power for photovoltaic water electrode heat storage boiler Power supply, namely:

[0254] (30)

[0255] in, .

[0256] Since the photovoltaic water electrode heat storage boiler can convert photovoltaic power into heat and has the characteristics of 0~100% adjustable power for water heating and heat storage, the controller makes full use of the 0~100% adjustable power characteristics of the photovoltaic water electrode heat storage boiler to track the maximum power of photovoltaic power generation and ensure the maximum utilization of photovoltaic power generation.

[0257] Step 4.3. Perform adaptive oxygen control, including:

[0258] Since the nitrogen protection of the sealed insulation cabin adopts membrane nitrogen and oxygen separation technology, the air compressor converts the ratio of nitrogen to oxygen in the compressed air into Through membrane nitrogen and oxygen separation technology, nitrogen is compressed into a sealed thermal insulation cabin. ,temperature When the pressure is , based on the Clapeyron equation:

[0259] PV=nRT (31)

[0260] (32)

[0261] By changing the pressure in the sealed insulation cabin to Amount of substances that can be converted into nitrogen , since the ratio of nitrogen to oxygen in the air is , under the same conditions, the amount of oxygen converted into substances is , thereby controlling the amount of oxygen in the air separation by remotely setting or controlling the controlled pressure reducing valve while ensuring the required pressure range in the sealed and insulated cabin.

[0262] ‌Wherein, the meaning of each letter in the PV=nRT equation is:‌

[0263] P‌ represents the pressure of the gas, and its unit is Pascal (Pa).

[0264] V‌ represents the volume of the gas in cubic meters (m³).

[0265] n represents the amount of gas, usually expressed in moles (mol).

[0266] R‌ stands for the ‌gas constant‌, which has a value of 8.314 Pa·m³ / mol·K.

[0267] T‌ represents the absolute temperature of the gas, measured in Kelvin (K).

Claims

1. A control method for a high-quality life system in high-altitude areas with multi-energy synergy, characterized in that: The steps include: Step 1: Formulate the principles to be followed by the control method; Step 2: define two working modes and parameters of the bidirectional energy storage converter; Step 3, establish basic daily variation data table and objective function; Step 4: Control the system according to steps 1 to 3.

2. The control method of the high-quality life system in high altitude areas with multi-energy synergy according to claim 1 is characterized in that: The principles of step 1 include: Principle 1. The number of full photovoltaic hours per day under normal lighting conditions changes with the seasons. Greater than or equal to the number of hours of photovoltaic daily full power inflection point ,Right now At this point in time, the later photovoltaic power generation is a bidirectional converter chemical battery energy storage power supply mode, with power supply and storage as the priority, followed by hydrogen production and storage, and finally heat production and storage; Principle 2. The number of full photovoltaic hours per day under normal lighting conditions changes with the seasons. Less than or equal to the number of hours of photovoltaic daily full power inflection point reduction ,Right now At this point, all the photovoltaic power generation in the later period is used for heating, and the bidirectional converter fuel cell power supply mode is started; Principle 3. The principle of giving priority to power supply and storage, and supplementing with heating and storage; Principle 4. Unified units: both electricity and heat are measured in kilowatt-hours.

3. The control method of the high-quality life system in high altitude areas with multi-energy synergy according to claim 2 is characterized in that: The step 2 comprises: Step 2.1 defines two working modes of the energy storage converter as a bidirectional converter chemical battery energy storage power supply mode and a bidirectional converter fuel cell power supply mode; Step 2.2 Define the number of hours for the photovoltaic daily full power inflection point to rise and fall , including the number of hours of photovoltaic full-day turning point reduction The number of hours of photovoltaic power generation turning point .

4. The control method of the high-quality life system in high altitude areas with multi-energy synergy according to claim 3 is characterized in that: In step 2.1, the bidirectional converter chemical battery energy storage power supply mode is: When photovoltaic power generation meets the bidirectional energy storage converter to supply power to the load and charge the chemical battery at the same time, photovoltaic power generation outputs power through the bidirectional energy storage converter. Power supply to load and chemical battery charging power Power supply, photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is: （1） Output power of bidirectional energy storage converter in the morning and evening or without sunlight Discharge power from chemical batteries Provide power to supply the load, that is: （2） The bidirectional converter fuel cell power supply mode is: When photovoltaic power generation can only meet the heating power, the bidirectional energy storage inverter output power The fuel cell provides energy to power the load, and the bidirectional energy storage converter outputs power Equal to the fuel cell output power ,Right now: （3）。 5. The control method of the high-quality life system in high altitude areas with multi-energy synergy according to claim 3 is characterized in that: In step 2.2, the number of hours of photovoltaic full-day inflection point reduction for: In photovoltaic installed capacity Due to the uniqueness of local light, when the seasons change, the number of photovoltaic full-time hours Reduce the daily power generation of synchronous photovoltaic Reduced, can only meet the local current minimum daily heat storage target water temperature Power consumption Daily power supply in bidirectional converter chemical battery energy storage mode When the sum is: （4） At this time, according to Principle 2, the daily photovoltaic power generation All used for heating, and powered by a bidirectional converter fuel cell, the number of full photovoltaic hours at this time Defined as the number of hours that the photovoltaic power generation point drops to the maximum value per day ; The number of hours for the photovoltaic day full power inflection point to rise for: In photovoltaic installed capacity At a certain time, due to the uniqueness of local light, the number of photovoltaic full-time hours per day changes with the seasons. Increase, photovoltaic daily power generation Increase synchronously, when the photovoltaic power generation Greater than or equal to the local current minimum daily heat storage target water temperature Power Consumption Daily power supply in bidirectional converter chemical battery energy storage mode When the sum is: （5） The number of full photovoltaic hours per day at this time Defined as the number of hours of photovoltaic power generation turning point rise , thus starting the bidirectional converter chemical battery energy storage power supply mode and hydrogen production and storage according to Principle 1; Among them, due to the daily photovoltaic power generation Equal to photovoltaic installed capacity Multiply by the number of full photovoltaic hours per day ,Right now: （6） Considering the low irradiance in local cloudy weather, the number of full photovoltaic hours per day will be affected , when monitoring continuous sky but or The number of hours of full power generation of photovoltaic power at this time They are defined as the number of hours of photovoltaic full power inflection point The number of hours of photovoltaic power generation turning point reduction ; is an integer .

6. The control method of the high-quality life system in high altitude areas with multi-energy synergy according to claim 5 is characterized in that: The step 3 comprises: Step 3.1 Establish a basic data table of average daily changes over the same period of history, including: Based on local historical data and field survey analysis and calculation, we first establish the daily electricity consumption , Maximum daily power consumption , daily calorie , Average outdoor temperature ℃, source water temperature ℃、PV daily full power hours Basic data table of historical average daily changes over the same period; Step 3.2 Establish the minimum daily heat storage target water temperature Function: Daily heat Equal to the specific heat capacity of water , Hot water quality With water temperature rise The product of, that is: （7） Among them, water temperature rise is the source water temperature Increase to the daily heat storage target water temperature ,Right now: (8) Minimum daily heat storage target water temperature The function of the current heat storage temperature , House insulation coefficient , Source water temperature , Average outdoor temperature ,month , heat storage tank volume , Thermal insulation coefficient of heat storage tank ,humidity Related, and based on historical water use heat data for the same period , the daily heat storage target water temperature is obtained through model simulation Function: （9） Step 3.3 Establish the minimum target remaining power Function: Minimum power storage target remaining power The function value of the battery is related to the ambient temperature , Remaining battery power ,month , Current daily power consumption , Charge and discharge rate , cumulative charge and discharge times , Battery discharge power , battery attenuation rate , Battery working lower limit voltage Related, combined with historical daily electricity consumption data for the same period , the minimum target remaining capacity of power storage is obtained through simulation Function: （10） Among them, daily electricity consumption Powered by the bidirectional energy storage converter output, including: daily power consumption of the air compressor , electricity for basic living and other electrical facilities; Step 3.4 Establish the number of hours for the photovoltaic daily full power inflection point to rise and fall Function: The number of hours for the photovoltaic power generation to reach the turning point of full power generation per day is reduced The local topography and photovoltaic installation capacity , minimum daily heat storage target water temperature , Bidirectional converter chemical battery energy storage power supply mode daily power supply ,month Related, based on historical data Based on the field survey and analysis, and the historical average daily change basic data table, the number of hours of photovoltaic daily full power inflection point rise and fall is obtained. Function: （11） Among them, according to the month Analyze the number of hours of photovoltaic full power turning point when the season changes from summer solstice to winter solstice Reduce, reducing the number of hours for the photovoltaic day full power inflection point The function is: （12） By month Analyze the number of hours of photovoltaic full power turning point when the season changes from winter solstice to summer solstice Increase, which is the number of hours of photovoltaic daily full power inflection point rise Function, that is: （13） Step 3.5 Establish the minimum daily hydrogen production standard The objective function is: Daily minimum standard hydrogen production formula The objective function and the hydrogen standard number of fuel cells , days of hydrogen production , PV daily full power hours , electrolytic cell temperature , electrolytic cell voltage , electrolytic cell current , electrolyzer pressure , Historical electricity consumption data for the same period , daily electricity consumption ,month and no sunlight days According to the model simulation, the minimum daily hydrogen production standard is obtained. The objective function is: （14） The standard cubic meter of hydrogen used in fuel cells The function is equal to 365 days minus the number of days for hydrogen production. Average daily hydrogen consumption of fuel cells The product of, that is: （15）。 7. The control method of the high-quality life system in high altitude areas with multi-energy synergy according to claim 6 is characterized in that: The step 4 comprises: First, the main controller reads all equipment and sensor data in real time, and reads the historical data of the irradiance meter on the previous normal sunshine day and the number of hours of the photovoltaic day full power inflection point rise and fall according to the current date. Function to analyze and calculate the number of full-time hours of photovoltaic power generation per day , photovoltaic full power hours per day Is it greater than or equal to the number of hours of photovoltaic daily full power inflection point rise? ,Right now , or less than or equal to the number of hours of photovoltaic daily full power inflection point reduction ,Right now ; because Photovoltaic daily power Time-sharing for bidirectional energy storage converter chemical battery energy storage and electrolyzer power Provide power, so that the photovoltaic power generated daily Equal to the chemical battery energy storage power of the bidirectional energy storage converter ,Right now: （16） And photovoltaic daily power Equal to load , electrolytic cell power Adaptive power to photovoltaic water electrode heat storage boiler The sum is: （17） Among them, the bidirectional energy storage converter has the function of photovoltaic output maximum power tracking; ; is the rated power of the electrolyzer.

8. The control method of the high-quality life system in high altitude areas with multi-energy synergy according to claim 7 is characterized in that: The step 4 comprises the following steps: Step 4.

1. When ,According to Principle 1, during the no-light period, photovoltaic power generation is used as a bidirectional converter chemical battery energy storage power supply mode; Step 4.

2. When According to principle 2, the main controller starts the bidirectional converter fuel cell power supply mode to supply power to the load. , Photovoltaic power generation Adaptive power for photovoltaic water electrode heat storage boiler Power supply, namely: （30） in, ; Step 4.

3. Perform adaptive oxygen production control, including: changing the pressure in the sealed insulation cabin to Thus changing the amount of nitrogen into substance , since the ratio of nitrogen to oxygen in the air is , under the same conditions, the amount of oxygen converted into substances is , thereby controlling the amount of oxygen in the air separation by remotely setting or controlling the controlled pressure reducing valve while ensuring the required pressure range in the sealed and insulated cabin.

9. The control method of the high-quality life system in high altitude areas with multi-energy synergy according to claim 8 is characterized in that: The step 4.1 comprises: When there is sunlight, the photovoltaic power generation output power Greater than zero, that is When including: Step 4.1.1 When the photovoltaic power output voltage Less than the minimum input voltage of the bidirectional energy storage converter ,Right now When the main controller starts the photovoltaic water electrode heat storage boiler, the photovoltaic power generation power Providing power for photovoltaic water electrode heat storage boiler Based on the heating principle and electric power principle of photovoltaic water electrode heat storage boiler and the principle of photovoltaic maximum power point tracking, the distance between water electrodes is adjusted in the autonomous control mode to ensure that the photovoltaic water electrode heat storage boiler provides power. Equal to the maximum power point of photovoltaic output Right now , thereby achieving the heating of the water body of the photovoltaic water electrode heat storage boiler while achieving the photovoltaic maximum power point of the photovoltaic water electrode heat storage boiler Tracking, photovoltaic power generation is maximized; Step 4.1.2 When the photovoltaic power output voltage Greater than or equal to the minimum input voltage of the bidirectional energy storage converter ,Right now When the main controller starts the bidirectional energy storage converter, and uses the maximum power tracking feature of the bidirectional energy storage converter to ensure the optimal output power of photovoltaic power generation Through the bidirectional energy storage converter, the load is supplied with power based on the bidirectional energy storage converter control strategy. and chemical battery charging power , so the photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is: （18） In the process of photovoltaic power generation, the bidirectional energy storage converter is based on the minimum power storage target remaining power. Function to calculate the minimum remaining power of the power storage target in real time value, when the bidirectional energy storage converter stores the remaining power Greater than or equal to When the value is reached, the chemical battery is stopped from being charged and the load is kept powered. ; Step 4.1.3 When When the photovoltaic power generation output power Greater than or equal to 50% of the rated power of the electrolyzer for hydrogen production With current load , Adaptive power of photovoltaic water electrode heat storage boiler The sum of the powers is: （19） Photovoltaic daily power For load , electrolytic cell power Adaptive power of photovoltaic water electrode heat storage boiler Power supply, due to The main controller controls the power adaptation of the photovoltaic water electrode heat storage boiler , realize the maximum power MPPT tracking of photovoltaic power generation, which not only ensures the maximum utilization of photovoltaic power generation but also realizes the power of electrolyzer Power to produce hydrogen, thus photovoltaic power generation per day Equal to load , electrolytic cell power Adaptive power to photovoltaic water electrode heat storage boiler The sum is: （20） The electrolytic cell voltage With electrolytic cell current The product of is equal to the electrolyzer power ,Right now ; ; Adaptive power of photovoltaic water electrode heat storage boiler for ; The main controller controls the power adaptation of the photovoltaic water electrode heat storage boiler Increase or decrease to adapt to the changes in photovoltaic power generation and achieve maximum power MPPT tracking of photovoltaic power generation; Step 4.1.4 When When the minimum power storage target remaining power is increased value: When the main controller detects that the daily hydrogen production standard of the electrolyzer is Greater than or equal to the minimum daily hydrogen production standard The objective function value is When the main controller stops the electrolytic cell hydrogen production and photovoltaic water electrode heat storage boiler, , ; At this time, when the photovoltaic power Greater than or equal to load Battery charging power with chemistry When the sum is: （21） And the photovoltaic power generation output voltage Less than the minimum input voltage of the bidirectional energy storage converter ,Right now When the main controller starts the bidirectional energy storage converter, the remaining power of the minimum energy storage target is increased. value, and utilize the maximum power MPPT tracking feature of the bidirectional energy storage converter to ensure the optimal output power of photovoltaic power generation At the same time, the chemical battery is charged by the bidirectional energy storage converter to maximize the remaining power stored by the bidirectional energy storage converter. , and ensure the load power supply , so the photovoltaic power generation Equal to load power supply Battery charging power with chemistry The sum is: （22） Step 4.1.5 When the photovoltaic water electrode heat storage boiler heat storage temperature Achieve minimum daily heat storage target water temperature When the value , the main controller controls the photovoltaic water electrode heat storage boiler to stop working. , when the photovoltaic power Greater than or equal to load , Chemical battery charging power Rated power of electrolyzer When the sum is: （23） The main controller monitors the remaining power of the bidirectional energy storage converter When the main controller controls the bidirectional energy storage converter to increase the minimum energy storage target remaining power , start the bidirectional energy storage converter to charge the chemical battery, and use the maximum power MPPT tracking feature of the bidirectional energy storage converter to match the rated power of the electrolyzer Collaboratively, based on the bidirectional energy storage converter control strategy and hydrogen production control strategy, photovoltaic power generation is the load power , Chemical battery charging power and electrolyzer rated power Hydrogen production is used to generate electricity, and photovoltaic power generation is used to generate electricity Equal to load power supply , Chemical battery charging power Rated power of electrolyzer The sum is: （24） This ensures the optimal output power of photovoltaic power generation , and increase the remaining power of chemical battery storage and guarantee the daily hydrogen production standard for electrolyzer hydrogen production ; Step 4.1.6 When Time control to supplement or increase the daily hydrogen production standard : The main controller obtains the normal light in front The average remaining capacity of chemical battery energy storage replenished every day Value, front normal light The average standard of hydrogen production on the day and the normal sunshine in the future numerical forecast of the day; Average standard cubic meter of hydrogen produced on the day for: （25） The average standard volume of hydrogen produced on that day Compared with the current minimum daily hydrogen production standard Target value comparison, if less than the minimum daily hydrogen production standard The target value, i.e. When the normal illumination is continued Days Remaining power before chemical battery storage Remaining power compared to the current minimum power storage target Poor average remaining capacity Value, that is: （26） If less than the multiplication factor The minimum power storage target remaining power The product value of When comparing and evaluating the future normal sunlight intensity, the basic data table of average daily changes in the same period in history is used to compare and evaluate the future normal sunlight intensity. Numerical prediction of photovoltaic full power hours per day , whether the photovoltaic daily full-time hours are the same as the historical average daily change basic data table during the same period The absolute value of the deviation is less than or equal to Scope, that is: （27） If the minimum target power is met, the main controller controls the bidirectional converter to reduce the remaining power. for: （28） Among them, take the multiplication factor Range is ; Value range ; is an integer; ; Average standard cubic meter of hydrogen produced on the day The value is equal to the current minimum hydrogen production standard Target value comparison, if greater than or equal to the minimum daily hydrogen production standard The target value, i.e. When the main controller controls the bidirectional converter to restore the original minimum power storage target remaining power The value of If the real-time monitoring and analysis of the main controller does not meet , , The conditions are as follows: increase the hydrogen production time to supplement the average daily hydrogen production standard The value is greater than or equal to the minimum daily hydrogen production standard The target value is: （29）。

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